Certified to remove
Water filters certified to remove Total dissolved solids
Total dissolved solids (TDS) are the combined minerals, salts, and metals in water. High TDS affects taste and can indicate other issues; reverse osmosis is the main certified way to reduce it.
397
certified models
128
with current prices
"Certified" means the model is listed in the NSF, WQA, or IAPMO public database as reducing Total dissolved solids — not just "tested to" a standard.
Two ways to fix it
Pick the path that fits you
You can start cheap with a no-install filter, or solve it permanently with an installed system that costs far less per gallon over time. Both options below are certified to reduce Total dissolved solids.
Prices shown are as of August 20, 2026 and may change — check Amazon for the current price. As an Amazon Associate we earn from qualifying purchases; some links are affiliate links and we may earn a commission at no extra cost to you. Disclosure.
Best permanent solution
Aqua-Pure
SGLP200-CLX-BP
Reverse osmosis · lowest long-term cost
$152.03 · 1.0¢/gal
Buy → Top certified picks with prices
Prices shown are as of August 20, 2026 and may change — check Amazon for the current price. As an Amazon Associate we earn from qualifying purchases; some links are affiliate links and we may earn a commission at no extra cost to you. Disclosure.
93 consumer filters certified to remove Total dissolved solids
Recognizable brands worth shopping. (397 models are certified in total, including commercial, dealer-installed, and OEM units — see the full registry.)
| Filter | Type | Capacity | Price | ¢/gal | |
|---|---|---|---|---|---|
Aqua-Pure SGLP200-CLX-BP NSF | REVERSE OSMOSIS | 15,000 gal | $152.03 | 1.0 | Buy |
Waterdrop Tankless RO WQA | REVERSE OSMOSIS | 715 gal | $239.99 | 4.9 | Buy |
Pentair GRO-350B NSF | REVERSE OSMOSIS | 750 gal | $37.9 | 5.1 | Buy |
Pentair GRO-475B NSF | REVERSE OSMOSIS | 750 gal | $37.9 | 5.1 | Buy |
Pentair GRO-475BP NSF | REVERSE OSMOSIS | 750 gal | $37.9 | 5.1 | Buy |
3M 3MRO301 NSF | REVERSE OSMOSIS | 1,500 gal | $659.99 | 13.8 | Buy |
3M 3MRO401 NSF | REVERSE OSMOSIS | 1,500 gal | $46.36 | 13.8 | Buy |
Pentair GRO-575B NSF | REVERSE OSMOSIS | 675 gal | $809 | 13.8 | Buy |
Brondell RC250 WQA | REVERSE OSMOSIS | 300 gal | $69.99 | 23.3 | Buy |
GE GNRQ18NBN NSF | REVERSE OSMOSIS | 260 gal | $63.87 | 24.6 | Buy |
GE GXRQ18NBN NSF/IAPMO | REVERSE OSMOSIS | 260 gal | $65 | 24.6 | Buy |
GE GXRV40TBN NSF/IAPMO | REVERSE OSMOSIS | 260 gal | $63.87 | 24.6 | Buy |
APEC ROES-50 WQA | REVERSE OSMOSIS | 34.8 gal | $79.99 | 31.0 | Buy |
APEC ROES-PH75 WQA | REVERSE OSMOSIS | 27.9 gal | $99.99 | 38.7 | Buy |
A.O. Smith High Efficiency Reverse Osmosis AOS-HERO-CHR WQA | REVERSE OSMOSIS | 250 gal | $99.99 | 40.0 | Buy |
Brondell RC100 WQA | REVERSE OSMOSIS | 180 gal | $79.99 | 44.4 | Buy |
APEC RO-90 WQA | REVERSE OSMOSIS | 33.3 gal | $229.95 | 63.0 | Buy |
APEC RO-Hi WQA | REVERSE OSMOSIS | 33.3 gal | $367.99 | 63.0 | Buy |
APEC RO-PH90 WQA | REVERSE OSMOSIS | 33.3 gal | $359.99 | 63.0 | Buy |
Geekpure ERO-175 NSF | REVERSE OSMOSIS | 3,850 gal | $37.99 | — | Buy |
iSpring HERO-385PLUS NSF | REVERSE OSMOSIS | 4,500 gal | $339.6 | — | Buy |
Pentair OmniFilter RO2050 NSF | REVERSE OSMOSIS | 1 gal | $21.69 | — | Buy |
A.O. Smith AORO-50 NSF | REVERSE OSMOSIS | — | $83.99 | — | Buy |
APEC CN-RO-50G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC CN-RO75 NSF | REVERSE OSMOSIS | — | $89.6 | — | Buy |
APEC RO-B02-75G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC RO-B03-75G NSF | REVERSE OSMOSIS | — | $99.99 | — | Buy |
APEC RO-B04-50G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC RO-B05-50G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC RO-R05-50G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC RO-R06-50G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC RO-R07-50G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC RO-R08-50G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC RO-R09-50G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
Express Water RO10DX NSF | REVERSE OSMOSIS | — | $110.99 | — | Buy |
Express Water RO5DX NSF | REVERSE OSMOSIS | — | $209.99 | — | Buy |
iSpring MRO1785-800G NSF | REVERSE OSMOSIS | — | $149.49 | — | Buy |
iSpring HD-MRO800C NSF | REVERSE OSMOSIS | — | $26.36 | — | Buy |
iSpring RCC7 NSF | REVERSE OSMOSIS | — | $219.96 | — | Buy |
iSpring RCC7AK NSF | REVERSE OSMOSIS | — | $234.99 | — | Buy |
iSpring RCC7AK-UV NSF | REVERSE OSMOSIS | — | $329.99 | — | Buy |
iSpring RO500-BN NSF | REVERSE OSMOSIS | — | $625.06 | — | Buy |
iSpring RO500-ORB NSF | REVERSE OSMOSIS | — | $629.24 | — | Buy |
iSpring RO500AK-BN NSF | REVERSE OSMOSIS | — | $625.06 | — | Buy |
iSpring RO500AK-ORB NSF | REVERSE OSMOSIS | — | $633.6 | — | Buy |
iSpring RCC7-BLK NSF | REVERSE OSMOSIS | — | $239.99 | — | Buy |
iSpring RCC7-BN NSF | REVERSE OSMOSIS | — | $219.96 | — | Buy |
iSpring RCC7AK-BLK NSF | REVERSE OSMOSIS | — | $234.99 | — | Buy |
iSpring RCC7AK-BN NSF | REVERSE OSMOSIS | — | $234.99 | — | Buy |
iSpring RCC7AK-UVBLK NSF | REVERSE OSMOSIS | — | $354.99 | — | Buy |
iSpring RCC7AK-UVBN NSF | REVERSE OSMOSIS | — | $329.99 | — | Buy |
iSpring RCC7UV NSF | REVERSE OSMOSIS | — | $328.29 | — | Buy |
Waterdrop Kent Grand Star Mineral RO NSF | REVERSE OSMOSIS | — | $29.99 | — | Buy |
Waterdrop Kent Pearl Mineral RO NSF | REVERSE OSMOSIS | — | $29.99 | — | Buy |
Waterdrop Kent Supreme + Mineral RO NSF | REVERSE OSMOSIS | — | $29.99 | — | Buy |
Geekpure M9 3HA RO 100GPD NSF | REVERSE OSMOSIS | — | $45.11 | — | Buy |
Geekpure M9 3HA RO 75GPD NSF | REVERSE OSMOSIS | — | $157.99 | — | Buy |
APEC M9 4HA RO 50GPD NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC M9 4SS RO 50GPD NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
APEC M9 5HA RO 50GPD NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
Geekpure M9 5HA RO 75GPD NSF | REVERSE OSMOSIS | — | $157.99 | — | Buy |
Pentair GRO-2550 NSF | REVERSE OSMOSIS | — | $17.22 | — | Buy |
Pentair GRO-2575 NSF | REVERSE OSMOSIS | — | $17.22 | — | Buy |
Pentair RO-2550 NSF | REVERSE OSMOSIS | — | $17.22 | — | Buy |
Pentair T600RO NSF | REVERSE OSMOSIS | — | $92.72 | — | Buy |
APEC TOP-RO-R05-50G NSF | REVERSE OSMOSIS | — | $79.99 | — | Buy |
Express Water TOP-RO-R05-75G NSF | REVERSE OSMOSIS | — | $47.99 | — | Buy |
Aqua-Pure ScaleGard HP Reverse Osmosis System NSF | REVERSE OSMOSIS | — | $1,567.67 | — | Buy |
APEC RO3DB-600M-NF NSF | REVERSE OSMOSIS | — | $35.99 | — | Buy |
APEC RO3EW-600M-NF NSF | REVERSE OSMOSIS | — | $35.99 | — | Buy |
iSpring RO-9-50G NSF | REVERSE OSMOSIS | — | $62.32 | — | Buy |
APEC ROES-100 WQA | REVERSE OSMOSIS | — | $49.99 | — | Buy |
Aquasana AQ-SFRO2 WQA | REVERSE OSMOSIS | 25.7 gal | $62.99 | — | Buy |
Aquasana OptimH2O AQ-RO-3 WQA | REVERSE OSMOSIS | 13.32 gal | $89.99 | — | Buy |
Bluevua RO100ROPOT-LITE WQA | REVERSE OSMOSIS | 100 gal | $79.9 | — | Buy |
Bluevua RO100ROPOT-LITE(UV) WQA | REVERSE OSMOSIS | 100 gal | $79.9 | — | Buy |
Bluevua RO100ROPOT-Travel WQA | REVERSE OSMOSIS | — | $49.9 | — | Buy |
Bluevua RO100ROPOT-YMT WQA | REVERSE OSMOSIS | — | $79.9 | — | Buy |
Culligan AC-30 WQA | REVERSE OSMOSIS | 14.5 gal | $36.99 | — | Buy |
Culligan AC-30 Plus WQA | REVERSE OSMOSIS | 14.5 gal | $69.99 | — | Buy |
Culligan AC-30L WQA | REVERSE OSMOSIS | 14.5 gal | $69.99 | — | Buy |
Culligan AC-30L Plus WQA | REVERSE OSMOSIS | 14.5 gal | $69.99 | — | Buy |
Culligan AC-30M WQA | REVERSE OSMOSIS | 14.5 gal | $69.99 | — | Buy |
Culligan AC-30M Plus WQA | REVERSE OSMOSIS | 14.5 gal | $69.99 | — | Buy |
Culligan RO (2 yr) WQA | REVERSE OSMOSIS | 27.8 gal | $328.28 | — | Buy |
Culligan Smart RO WQA | REVERSE OSMOSIS | 34.1 gal | $37.16 | — | Buy |
Culligan Smart RO (2 yr) WQA | REVERSE OSMOSIS | 34.1 gal | $37.16 | — | Buy |
Culligan Smart RO (2yr) Nitrate WQA | REVERSE OSMOSIS | 34.1 gal | $35.96 | — | Buy |
Culligan Smart RO Nitrate WQA | REVERSE OSMOSIS | 34.1 gal | $37.16 | — | Buy |
Culligan Tankless RO with Mineral Boost+ WQA | REVERSE OSMOSIS | 715 gal | — | 4.9 | |
Brita Pro BPLRO-35 NSF | REVERSE OSMOSIS | — | — | — | |
Pentair Everpure Residential ROM IV NSF | REVERSE OSMOSIS | — | — | — | |
Maytag DRINKING WATER SYSTEM MODEL M-550 NSF | REVERSE OSMOSIS | — | — | — |